4553 Marcasite, Franklin, New Jersey, USA October 5, 2019 Steve New Jersey North and Central Americas United States
North and Central Americas United States 0220 Marcasite, Galena, Tristate District, USA September 18, 2019
Derbyshire England United Kingdom ncat JP1756 Fluorite, Marcasite, Ladywash Mine, Eyam, Derbyshire, England, UK September 17, 2020
Canada North and Central Americas 1243 Dawsonite, Fluorite, Strontianite, Marcasite, Francon Quarry, Montreal, Quebec, Canada September 22, 2019
Canada North and Central Americas ncat JP0518 Dolomite, Calcite, Marcasite, Barite, Lincoln Quarry (Beamsville Quarry), Clinton Township, Lincoln Co., Ontario, Canada October 11, 2019
